Pectin Substances
Pectic substances (widely known in trade as "pectins") are polysaccharides, the main structure of which consists of polygalacturonic acids. They occur in plant cells, especially in vegetables and fruits, and for commercial purposes are extracted from apple, pear, quince, citrus fruit, sugar beet waste, etc. Pectins are primarily used as "preserving" agents in the production of jams and other preserves. They may be liquid or powder form and are included in this commodity category regardless of whether they are standardized or not by the addition of sugars (glucose, sucrose, etc.) or other products (providing stable activity upon use). Sometimes they contain sodium citrate or other buffering salts.
Source: "Explanations to the Harmonized Commodity Description and Coding System of the Russian Federation (HSN of Russia)" (prepared by the Customs Authority of the Russian Federation) (volume 1, sections I - VI, groups 1 - 29)